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Pan, Z; Cui, ZF; Chang, CH; Zong, HS; Pan, Z (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Finite-volume effects on phase transition in the Polyakov-loop extended Nambu-Jona-Lasinio model with a chiral chemical potential
发表期刊INTERNATIONAL JOURNAL OF MODERN PHYSICS A
语种英语
关键词Pnjl Model Qcd Phase Transitions Critical Exponents Finite-volume Effects
摘要To investigate the finite-volume effects on the chiral symmetry restoration and the deconfinement transition for a quantum chromodynamics (QCD) system with N-f = 2 (two quark flavors), we apply the Polyakov-loop extended Nambu Jona-Lasinio model by introducing a chiral chemical potential mu(5) artificially. The final numerical results indicate that the introduced chiral chemical potential does not change the critical exponents, but shifts the location of critical end point (CEP) significantly; the ratios for the chiral chemical potentials and temperatures at CEP, mu(c)/mu(5c) and T-c/T-5c, are significantly affected by the system size R. The behavior is that TT increases slowly with mu(5) when R is "large" and T-c decreases first and then increases with mu(5) when R is "small." It is also found that for a fixed mu(5), there is a R-min, where the critical end point vanishes and the whole phase diagram becomes a crossover when R < R-min. Therefore, we suggest that for the heavy-ion collision experiments, which is to study the possible location of CEP, the finite-volume behavior should be taken into account.
2017
卷号32期号:13页码:1750067
学科领域Physics
DOIhttp://dx.doi.org/10.1142/S0217751X17500671
项目资助者National Natural Science Foundation of China [11275243, 11535002, 11447601, 11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275243, 11535002, 11447601, 11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275243, 11535002, 11447601, 11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275243, 11535002, 11447601, 11275097, 11475085, 11535005] ; China Postdoctoral Science Foundation [2015M581765] ; China Postdoctoral Science Foundation [2015M581765] ; China Postdoctoral Science Foundation [2015M581765] ; China Postdoctoral Science Foundation [2015M581765] ; Jiangsu Planned Projects for Postdoctoral Research Funds [1402006C] ; Jiangsu Planned Projects for Postdoctoral Research Funds [1402006C] ; Jiangsu Planned Projects for Postdoctoral Research Funds [1402006C] ; Jiangsu Planned Projects for Postdoctoral Research Funds [1402006C]
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22057
专题理论物理所科研产出_SCI论文
通讯作者Pan, Z (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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GB/T 7714
Pan, Z,Cui, ZF,Chang, CH,et al. Finite-volume effects on phase transition in the Polyakov-loop extended Nambu-Jona-Lasinio model with a chiral chemical potential[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2017,32(13):1750067.
APA Pan, Z,Cui, ZF,Chang, CH,Zong, HS,&Pan, Z .(2017).Finite-volume effects on phase transition in the Polyakov-loop extended Nambu-Jona-Lasinio model with a chiral chemical potential.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,32(13),1750067.
MLA Pan, Z,et al."Finite-volume effects on phase transition in the Polyakov-loop extended Nambu-Jona-Lasinio model with a chiral chemical potential".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 32.13(2017):1750067.
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